- The BFA was set up in 1999 to promote freediving in the UK, and to encourage the safe practice of the sport. It is the UK representative of the International Association for the Development of Apnea (AIDA).
- The World Underwater Federation. One of the oldest dive organisations in the world, and one that serves to coordinate standards among water sports and activities; including scuba-diving, freediving and spearfishing.
- Freediving information for the active and beginning apneist by Glenn Venghaus an international competitive freediver and static apnea national record older.